Alright, let's work through 53112527 times 40053803 step by step
53112527 × 40053803 = 40053803 × (53112527)
+ 40053803 × 7 that results in 280376621
+ 40053803 × 20 yielding 801076060
+ 40053803 × 500 resulting in 20026901500
+ 40053803 × 2000 which equals 80107606000
+ 40053803 × 10000 which equals 400538030000
+ 40053803 × 100000 that is equal 4005380300000
+ 40053803 × 3000000 that results in 120161409000000
+ 40053803 × 50000000 resulting in 2002690150000000

= 2127358693290181
